The first time I got an e-mail from Sven was, when he was scolding me because of an e-mail I sent to the mutt-user mailing list. Sven complained about my horrible English and told me that I have to take more time to edit e-mails before sending them to a public mailing list out of respect to all the readers. Afterwards he helped me with so many things -- as he helped many others. I wrote down some personal memories here: https://k7r.eu/command-line-tool-lover-and-free-software-ent...
Still proud he teached me how to do show "Vim" "eastside/westside style" with my fingers. RIP Sven.